Reshma Jagsi was lead author on a recent study that found many patients with breast cancer unnecessarily choose double mastectomy. This study found that many patients consider contralateral prophylactic mastectomy (CPM), but their knowledge about the procedure is low and discussions with surgeons appear to be incomplete. CPM use is substantial among patients without clinical indications but is lower when patients report that their surgeon recommended against it. The study authors stress that more effective physician-patient communication about CPM is needed to reduce potential overtreatment. CBSSM faculty, Sarah Hawley, was a co-author on this study.